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    Author(s): R. M. Rice; J. S. Rothacher; W. F. Megahan
    Date: 1972
    Source: Proceedings National Symposium on Watersheds in Transition. American Water Resources Association, Ft. Collins, Colorado, June 1972. p. 321-329.
    Publication Series: Miscellaneous Publication
    PDF: View PDF  (199 KB)

    Description

    Abstract - This paper summarizes our current understanding of the effects of timber harvesting on erosion. Rates of erosion on mountain watersheds vary widely but the relative importance of different types of erosion and the consequences of disturbances remain fairly consistent. Therefore these conclusions seem to be valid for most circumstances: Most of man's activities will increase erosion to some extent in forested watersheds; erosion rarely occurs uniformly; sediment production declines rapidly following disturbance; landslides and creep are the chief forms of natural erosion in mountainous regions; cutting of trees does not significantly increase erosion, but clearcutting on steep unstable slopes may lead to increased mass erosion; accelerated erosion is a possible undesirable side effect of use of fire in conjunction with logging; the road system built for timber harvesting far overshadows logging or fire as a cause of increased erosion; and potentially hazardous areas can be identified in advance of the timber harvest

    Publication Notes

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    Citation

    Rice, R. M.; Rothacher, J. S.; Megahan, W. F. 1972. Erosional consequences of timber harvesting: An appraisal. Proceedings National Symposium on Watersheds in Transition. American Water Resources Association, Ft. Collins, Colorado, June 1972. p. 321-329.

    Keywords

    PSW4351, lumbering, accelerated erosion, landslides, clearcutting, erosion control, roads, dry ravel, watershed disturbance, slash burnin

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